Results 71 to 80 of about 152,789 (312)

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

A Sensitive and Label-Free Pb(II) Fluorescence Sensor Based on a DNAzyme Controlled G-Quadruplex/Thioflavin T Conformation

Sensors, 2016
Pb(II) can cause serious damaging effects to human health, and thus, the study of Pb2+ detection methods to sensitively and selectively monitor Pb(II) pollution has significant importance. In this work, we have developed a label-free fluorescence sensing
Yanli Wen, Lele Wang, Lanying Li, Li Xu, Gang Liu   +4 more
doaj   +1 more source

Assessment of new composites containing polyamide-6 and lead monoxide as shields against ionizing photonic radiation based on computational and experimental methods

Scientific Reports, 2022
This study aimed to introduce new composites, containing polyamide-6 (PA6) and lead monoxide (PbO), to protect against ionizing photon sources used for diagnostic and therapeutic purposes.
Shahryar Malekie, Hassan Shooli, Mohammad Amin Hosseini   +2 more
doaj   +1 more source

A Depolarizing Leak in Sodium Bicarbonate Cotransporter NBCe1 Causes Brain Edema

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives SLC4A4 encodes electrogenic sodium bicarbonate cotransporter NBCe1, prominently expressed in kidney and brain. Recessive loss‐of‐function variants in SLC4A4 cause proximal renal tubular acidosis, no brain edema. In the brain, NBCe1 is expressed by astrocytes, where it regulates pH and mediates astrocyte volume changes.
Quinty Bisseling, Mark D. Parker, Sven Kerst, Richard A. Pasternack, Jacob Tondreau, Marjolein Breur, Gemma M. van Rooijen‐van Leeuwen, Davide Tonduti, Ettore Salsano, Alejandra Darling, Joanna A. E. van Wijk, Susanna Törnroth‐Horsefield, Marianna Bugiani, Petra J. W. Pouwels, Quinten Waisfisz, Marjo S. van der Knaap, Rogier Min   +16 more
wiley   +1 more source

His+ reversions Caused in Salmonella typhimurium by different types of ionizing radiation [PDF]

, 1988
The yield of his+ reversions in the Ames Salmonella tester strain TA2638 has been determined for 60Co γ rays, 140 kV X rays, 5.4 keV characteristic X rays, 2.2 MeV protons, 3.1 MeV α particles, and 18 MeV/U Fe ions.
Kellerer, Albrecht M., Roos, H., Fitzek, M., Thomas, W.-H.   +3 more
core  

Ce doped SiO₂ optical fibers for remote radiation sensing and measurement [PDF]

, 2009
Scintillating materials, able to efficiently operate the conversion of energy absorbed in the form of ionizing radiation into light in the visible UV interval, are presently used in a wide class of applications as medical imaging, industrial inspection ...
Marco Brambilla, Marie Claire Cantone, Anna Vedda, Giampiero Tosi, Cannillo, Barbara, Cantone, Marie Cantone, Gilberto Brambilla, Eleonora Mones, M. Brambilla, G. Brambilla, Marco Petrovich, A. Vedda, B. Cannillo, Brambilla, Gilberto, Barbara Cannillo, Norberto Chiodini, Tosi, Gaimpiero, Vedda, Anna, I. Veronese, Fasoli, Mauro, Mauro Fasoli, Mones, Eleonora, E. Mones, M. Fasoli, A. Lauria, M. Petrovich, G. Tosi, Ivan Veronese, Lauria, Alessandro, Brambilla, Marco, Alessandro Lauria, M.C. Cantone, N. Chiodini, Petrovich, Marco, F. Moretti, Chiodini, Norberto, Moretti, Federico, Veronese, Ivan, Federico Moretti   +38 more
core   +1 more source

Ostrich egg shell as an accurate retrospective dosimeter using electron paramagnetic resonance technique

Scientific Reports
This study investigates the dosimetric features of Ostrich egg shell (Oesh) using Electron Paramagnetic Resonance (EPR) spectroscopy to evaluate its potential as an accurate retrospective dosimeter.
E. Aboelezz, M. A. Sharaf
doaj   +1 more source

Assessment of the SARS-CoV-2 basic reproduction number, R0, based on the early phase of COVID-19 outbreak in Italy

Biosafety and Health, 2020
As of March 12th Italy has the largest number of SARS-CoV-2 cases in Europe as well as outside China. The infections, first limited in Northern Italy, have eventually spread to all other regions.
Marco D'Arienzo, Angela Coniglio
doaj   +1 more source

Characterization of Aluminized Layers on Inconel‐738 Alloy: Microstructure, Modeling of Aluminizing Kinetics, and Thermal Behavior

Advanced Engineering Materials, EarlyView.
This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe, Tuba Yener, Suayb Cagri Yener, Mourad Keddam, Cuma Bindal   +4 more
wiley   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source